Self-powered trainable switching network
US6812594B2 · kind B2 · utility
36Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2001 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Jan 4, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S20/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A self-powered switching device using a prestressed flextensional electroactive member generates a signal for activation of a latching relay. The electroactive member has a piezoelectric element with a convex and a concave face that may be compressed to generate an electrical pulse. The flextensional electroactive member and associated signal generation circuitry can be hardwired directly to the latching relay or may be coupled to a transmitter for sending an RF signal to a receiver which actuates the latching relay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.